Sterile connector assembly and sterile connector

Abstract

The invention discloses a sterile connector assembly and a sterile connector. The sterile connector assembly comprises two connectors and two locking pieces, each connector comprises a clamping piece which is used for enabling the two connectors to be in butt joint to a pre-sealing position in the axial direction. And a locking area; the locking piece is used for being matched with the locking areas of the two connectors, so that the two connectors are in butt joint in the axial direction to form a sealing position, the two elastic sealing parts are compressed and abut against each other, and the two flow channels form a sealing channel extending in the axial direction. Wherein the total number of the clamping pieces in the two connectors is at least three, after the two connectors are in butt joint in the axial direction, the connecting line of the positions of the at least two clamping pieces penetrates through the flow channel, and the angle Q formed by the connecting lines of the at least two clamping pieces and the axis of the flow channel is larger than or equal to 120 degrees and smaller than or equal to 180 degrees. When the two connectors are in butt joint, the force borne by each clamping piece enables the stress of the connectors to be balanced, deviation or swing of the two connectors in the butt joint process is reduced, and therefore the stability of the two connectors at the pre-sealing position is improved.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection, and in particular to a sterile connector assembly and a sterile connector. Background Art

[0002] Aseptic connectors are devices designed to safely connect two or more fluid pathways while maintaining sterile conditions. They are widely used in industries such as pharmaceutical, biotechnology, medical device, and food and beverage, especially in processes that need to ensure that the product is free from microbial contamination.

[0003] For example, Chinese utility model patent CN216843590U discloses an aseptic connector and a connector assembly, including a first aseptic connector and a second aseptic connector, which can form a first relative position and a second relative position in a space after axial docking; when located at the first relative position, the second elastic sealing portion and the fourth elastic sealing portion are elastically deformed, and can abut against each other after the first film and the second film are pulled out to form a preliminary antibacterial seal; when located at the second relative position, the first elastic sealing portion and the third elastic sealing portion abut against each other to form a stable antibacterial seal; specifically, the first mounting structure and the second mounting structure both include a first accommodating member and a first inserting member, the first accommodating member has a first snap-in space and a second snap-in space, and the first inserting member has a tongue portion; the first accommodating member and the first inserting member form a matching snap-in structure, and the tongue portion is located in the first snap-in space in the first relative position, and the tongue portion is located in the second snap-in space in the second relative position.

[0004] The sterile connector of the above patent has the following problems: when the first sterile connector and the second sterile connector are axially docked, the first insert of one and the first receiving part of the other are only aligned radially, and when the first sterile connector and the second sterile connector are in the first relative position, the tongue portion is located in the first card-in space. At this time, the contact area between the first insert and the first receiving part is very small, which can easily cause shaking or displacement between the two when they are mated, thereby affecting the position accuracy of the first insert and the first receiving part when they are mated in the second card-in space, and affecting the formation of a stable antibacterial seal between the first sterile connector and the second sterile connector.

[0005] Therefore, it is necessary to improve the structure of the sterile connector to improve the accuracy and sealing of the axial docking. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a sterile connector assembly and a sterile connector, which solves the problem that the existing sterile connector is prone to shaking during pre-sealing, affecting the sealing performance.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] A sterile connector assembly includes two connectors and a locking member;

[0009] The connector includes:

[0010] A body including a first surface;

[0011] A flow channel axially penetrating the body from the first surface;

[0012] An elastic sealing portion continuously extending circumferentially around the flow channel and protruding from the first surface;

[0013] A clamping member for axially docking the two connectors to a pre-sealed position;

[0014] And a locking area;

[0015] The locking member is used to cooperate with the locking areas of the two connectors to axially dock the two connectors into a sealed position, compress and press the two elastic sealing portions against each other, and form an axially extending sealed channel by the two flow channels;

[0016] Wherein, the total number of the clamping members in the two connectors is at least three. After the two connectors are axially docked,

[0017] The connection line of the positions of at least two of the clamping members passes through the flow channel, and the angle Q formed by the connection lines of at least two of the clamping members and the axis of the flow channel satisfies 120° ≤ Q ≤ 180°.

[0018] The aseptic connector assembly of the present invention uses two connectors to dock. In order to ensure the sterility of the flow path, a clamping member is used to make the two connectors enter the pre-sealing position first. In this state, the flow paths of the two connectors are initially in contact. Since the total number of the clamping members in the two connectors is at least three, and the connection line of the positions of at least two of the clamping members passes through the flow path, the angle Q formed by the connection lines of at least two of the clamping members and the axis of the flow path ranges from 120° ≤ Q ≤ 180°, and Q is the maximum included angle formed by the connection lines of the above two clamping members and the axis of the flow path. Thus, when the two connectors are axially docked, each clamping member can effectively disperse the force applied to the connector, avoiding local stress concentration and also avoiding the situation of tipping over due to the forces on any two clamping members being on the same straight line, ensuring the force uniformity and force balance at each part of the connector, reducing the probability of the flow path being exposed due to the offset or swing of the two connectors during the docking process, and thus improving the stability of the two connectors in the pre-sealing position; then, the locking member and the locking area are used in cooperation to axially dock the two connectors into the sealing position, realizing the sealed docking of the flow paths of the two connectors, separating the inside of the flow path from the outside, and ensuring the sterility of the inside of the flow path.

[0019] Preferably, the clamping members and the locking area are circumferentially misaligned.

[0020] When the two connectors are axially docked, both the clamping members and the locking area will exert forces on the main body. The difference is that the clamping members exert forces on the two main bodies when the two connectors are in the pre-sealing position, and the locking area and the locking member exert forces on the two main bodies when the two connectors are in the sealing position; the clamping members and the locking area are circumferentially misaligned, that is, their projections on the first surface along the axis do not overlap, avoiding the deformation of the locking area caused by the force exerted by the clamping members in the pre-sealing position and thus affecting the cooperation between the locking area and the locking member, so as to ensure the accuracy of the actions of the clamping members and the locking area respectively, and further ensure the final sealing performance.

[0021] Preferably, in the two connectors, the number of the clamping members is four groups and the four groups of clamping members are evenly distributed circumferentially. The maximum circumferential distance between adjacent two clamping members is H1, and the minimum circumferential distance between the clamping member and the adjacent locking area is H2, satisfying H1 / H2 = 1 - 6.

[0022] The snap-in piece applies a force to the two main bodies when the two connectors are in the pre-sealing position. Setting four snap-in pieces and controlling the circumferential spacing of the snap-in pieces is conducive to making the force on the main body relatively dispersed in the circumferential direction and more balanced, which can reduce the relative displacement or swing of the two connectors when docking; and controlling the ratio between H1 and H2 is mainly to control the circumferential spacing between the snap-in piece and the locking zone. On the one hand, it is necessary to ensure that the snap-in piece is relatively close to the locking zone. Then, when the two connectors are in the pre-sealing position, the force applied by the snap-in piece to the main body can apply a certain force to the elastic sealing part, so that the first surfaces of the two main bodies are relatively close, which is convenient for the subsequent cooperation between the locking piece and the locking zone; on the other hand, there is still a certain circumferential spacing between the snap-in piece and the locking zone, so as to avoid the deformation of the snap-in piece when subjected to force and affect the locking zone; at the same time, the snap-in piece is relatively close to the adjacent locking zone on one side, which is conducive to the timely action of the snap-in pieces of the two connectors after they are snapped to the pre-sealing position so that the locking piece and the locking zone cooperate, thereby ensuring the continuity and rapidity of the sealing action.

[0023] Preferably, the clamping member comprises a clamping portion located on the main body and a buckle portion cooperating with the clamping portion, and the clamping portion comprises a movable portion extending from the main body and a first hook located at an end of the movable portion;

[0024] In one of the connectors, the first hooks of at least two of the clamping parts are oriented in opposite directions.

[0025] When two connectors are docked into a pre-sealed position, the snap-fitting portion on one connector is snap-fitted with the snap-fitting portion on the other connector, wherein the first hook mainly applies force to the snap-fitting portion. For one connector, at least two first hooks are circumferentially opposite in direction. On the one hand, when snapped, the forces acting on various parts of a connector are balanced with each other, and the connector will not deflect or swing. On the other hand, after the two connectors are in the pre-sealed position, at least two first hooks cooperate with the snap-fitting portion to generate circumferential force components or tangential force components, which limit the rotation of the connectors, thereby avoiding the snap-fitting failure of the connector in the pre-sealed position due to rotation, and further causing the two flow channels to fail to dock.

[0026] Preferably, after the two connectors are axially butted together, the first hooks of two non-adjacent clamping members face in opposite directions.

[0027] It can be seen from the above that at least two first hooks on the same connector are circumferentially opposite in direction. After the two connectors are axially docked, the two adjacent first hooks belong to different connectors, and the two non-adjacent first hooks belong to the same connector, so that the first hooks of different connectors are spaced apart in the circumferential direction to ensure stability during and after the connection.

[0028] Preferably, in the sealed position, in the two connectors, the clamping portion of one and the buckling portion of the other are in a non-clamping state, and there is an axial gap between the first hook of the clamping portion and the buckling portion.

[0029] When the two connectors transition from the pre-sealed position to the sealed position, the clamping portion no longer exerts a force on the buckling portion, avoiding interference with the cooperation between the locking member and the locking area. Moreover, there is an axial gap between the first hook and its corresponding buckling portion, indicating that the first surfaces of the two connector bodies move closer together, and the elastic sealing portion at the flow channel is further compressed, improving the sealing performance.

[0030] Preferably, in the sealed position, the axial distance between the first surfaces of the two bodies is d1; in the pre-sealed position, the axial distance between the first surfaces of the two bodies is d2; d1 < d2 and d1 / d2 = 0.1 - 0.8.

[0031] As can be seen from the above, when the two connectors transition from the pre-sealed position to the sealed position, the first surfaces of the two bodies will move closer together and compress the elastic sealing portion. Controlling the ratio of d1 to d2 within the above range aims to control the compression amount of the elastic sealing portion and ensure the sealing performance. If the ratio is too large, the compression deformation of the elastic sealing portion is small, easily resulting in low sealing performance between the elastic sealing portions. If the ratio is too small, it means that the two connectors still have a large axial distance in the pre-sealed position, and a relatively large distance needs to be moved when transitioning from the pre-sealed position to the sealed position. In one case, when the two connectors are in the pre-sealed position, the two elastic sealing portions are prone to misalignment, causing the flow channel to be exposed and the inside of the flow channel to communicate with the outside. In another case, the elastic sealing portion protrudes from the flow channel more. When the two connectors are in the pre-sealed position, the two elastic sealing portions are in contact. Then, when transitioning from the pre-sealed position to the sealed position, the compression deformation of the elastic sealing portion is relatively large, and the axial movement distance of the two connectors is relatively long, easily causing the alignment state of the two connectors to shift, affecting the sealing performance between them.

[0032] Preferably, in one of the connectors, the number of the locking areas is at least two, and they are respectively located on the radial two sides of the flow channel.

[0033] The locking areas are used to cooperate with the locking members to exert a force on the connectors when the two connectors are docked into the sealed position to keep the two flow channels in sealed communication. The number of the locking areas is at least two and they are located on the radial two sides of the flow channel. The force on the connectors is relatively dispersed and more uniform, making the compression deformation amount of the elastic sealing portion circumferentially uniform and the sealing performance better.

[0034] Preferably, when the two connectors are docked in a sealed position, the radial projection of the locking member covers the elastic sealing portion, and the elastic sealing portion is entirely within the force application range of the locking member, being effectively squeezed and maintained in a stable compressed state, thereby providing a better sealing effect.

[0035] Preferably, the locking member includes a sliding member, and the locking area includes a sliding member provided on the main body. The sliding member extends radially or in a direction parallel to the radial direction on the side surface of the main body, such that the sliding member and the sliding member of the main body are in sliding fit along the radial direction or in a direction parallel to the radial direction.

[0036] The pressure of the liquid material in the flow channel acts on the docking portion of the two connectors. When the pressure of the liquid material is relatively large, the two connectors tend to separate from each other at the docking portion, and the force acting on them is along the axial direction. By slidably connecting the sliding member and the sliding member along the radial direction, that is, the locking member approaches the center of the flow channel by sliding along the radial direction, the force application direction during the locking process of the locking member is radial, and at the same time, an axial tension force is applied to the two main bodies. The force application direction is perpendicular to the direction of the force exerted by the liquid material on the connector. As long as the locking member and the main body of the locking area are not damaged, the axial tension force on the two main bodies will not fail, which is beneficial to preventing the two main bodies from separating axially. In addition, the sliding connection between the sliding member and the sliding member enables the locking member to slide within the locking area, quickly adjusting the matching relationship between the locking member and the locking area. The two connectors can quickly switch between the pre-sealed position and the sealed position. During sliding, there is no need to align or position the locking member and the main body, avoiding time and operation errors caused by such alignment or positioning, ensuring the coherence and rapidity of the sealing action, facilitating the rapid locking between the locking member and the main body, ensuring the sterility inside the flow channel, and at the same time improving the stability and accuracy of the sliding process.

[0037] Preferably, the sliding member is provided with a sliding groove extending in a direction parallel to the radial direction. The sliding groove has a first opening facing the circumferential side surface of the locking member, and the sliding member is slidably connected to the sliding groove along the radial direction.

[0038] By providing the sliding groove in cooperation with the sliding member, when the two connectors are in the pre-sealed position, the locking member and the locking area can be pre-corresponded in advance, enabling the locking member to be inserted into the locking area through the sliding member without shortening the axial distance between the two connectors. In subsequent operations, there is no need to align the locking member and the locking area again. By directly pressing the locking member inward, the two connectors can be in the sealed position, which is more convenient to operate and reduces the risk of unsealing due to relative offset or misalignment of the two connectors. The cooperation method between the sliding groove and the sliding member is simple and easy to process.

[0039] Preferably, the sliding groove includes a first section close to the flow channel and a second section far from the flow channel. The first cooperation gap between the first section and the sliding member is greater than the second cooperation gap between the second section and the sliding member.

[0040] In the pre-sealing position, the sliding member is located in the second section, and in the sealing position, the sliding member is located in the first section.

[0041] The first fitting gap is the gap between the sliding member and the inner wall of the first section when the sliding member is in the first section, and the second fitting gap is the gap between the sliding member and the inner wall of the second section when the sliding member is in the second section; when the two connectors transition from the pre-sealing position to the sealing position, the first surfaces of the two main bodies will be relatively close to each other, and under the axial tensioning force of the locking member on the two main bodies, the sliding grooves of the two locking areas will be driven to move closer to each other relative to the sliding member on the locking member. Conversely, the sliding member will move axially away from the sliding groove. Therefore, the first fitting gap between the first section and the sliding member is larger than the second fitting gap between the second section and the sliding member, reserving axial movement space of the sliding member relative to the sliding groove to prompt the sliding member to slide from the second section to the first section.

[0042] Preferably, the axial spacing of the first section is h1, the axial spacing of the second section is h2, and h1 / h2=1-1.2.

[0043] The axial spacing of the first section refers to the distance between the two inner walls of the first section in the axial direction, and the axial spacing of the second section refers to the distance between the two inner walls of the second section in the axial direction. In the pre-sealing position, the sliding part is located in the second section. If the ratio of h1 to h2 is too large, it means that h1 is larger than h2. In order to ensure the sealing performance of the two connectors, the axial movement distance from the pre-sealing position to the sealing position is relatively fixed. h1 needs to meet the axial movement space required by the sliding part in the first section based on the axial movement distance of the two connectors, that is, h1 cannot be too small, and the sliding part cannot be suspended in the first section, which is easy to fall out of the slide groove, that is, h1 cannot be too large, and when h1 When the ratio of h1 to h2 is too large, h2 will be too small, and the sliding part will not be easy to get into the slide groove, and it will be difficult to slide radially in the slide groove, which will affect the continuity and rapidity of the sealing action. When the ratio of h1 to h2 is too small, h2 will be too large, and the sliding part will easily get out of the slide groove, and the locking part cannot be matched with the locking area in advance. Therefore, it is necessary to control the ratio of h1 to h2 so that the sliding part can slide smoothly in the slide groove and will not get out of the slide groove easily, and the sliding part has a suitable axial displacement when it moves to the first section of the slide groove, which is compatible with the axial displacement of the two connectors from the pre-sealing position to the sealing position, so as to avoid the sliding part interfering with the axial sealing of the two connectors and ensure the sealing effect.

[0044] Preferably, the radial length of the first section is h3, the radial length of the second section is h4, and h3 / h4=0.3-4.

[0045] The radial length of the second section represents the sliding distance of the sliding part in the second section when the two connectors transition from the pre-sealing position to the sealing position. The radial length of the first section represents the radially movable distance of the sliding part in the first section when the two connectors are in the sealing position. Based on the size of the sliding part, if h3 is too large and the ratio of h3 to h4 is too large, it is easy to cause the sliding part at the sealing position to slip in the first section, affecting the stability and sealing effect of the two connectors in the sealing position. If h3 is too small, it is easy to cause the sliding part to be difficult to enter the first section. If h4 is too large and the ratio of h3 to h4 is too small, it means that the distance that the sliding part needs to move radially is too long, making it difficult to achieve quick locking, which is not conducive to maintaining the accuracy of the alignment process before the two bodies are locked.

[0046] Preferably, the sliding member has a second giving way surface at one end away from the flow channel, and the second giving way surface is inclined toward the direction of the slide groove; the sliding member has a first giving way surface,

[0047] When the locking member is matched with the locking area, the first clearance surface and the second clearance surface are pressed and matched to guide the sliding member into the sliding groove.

[0048] The function of the first and second give way surfaces is that the sliding member on the locking member needs to have a pre-tightening force to enter the slide groove. Therefore, the initial position of the sliding member is aligned with the end of the sliding member away from the flow channel, and the slide groove is located radially inside the end of the sliding member. Then, the first and second give way surfaces cooperate to reduce the instantaneous resistance of the sliding member at the time of initial contact with the sliding member, and the sliding member is deformed and accumulates force along the tangential direction. As the locking member goes deeper, the sliding member is opposite to the first opening of the slide groove, and is reset and stuck in the second section of the slide groove under the action of the pre-tightening force, thereby realizing the matching connection between the sliding member and the slide groove without the need for other components. The structure is simple and the operation is easy.

[0049] Preferably, the locking area includes a receiving portion located on the side of the main body, and the locking member includes a locking portion; when the two connectors are axially connected to a sealed position, the locking portions form a locking fit with the receiving portions of the two connectors.

[0050] The locking portion of a locking member corresponds to and locks with two receiving portions on the same side of the two connectors, and is used to apply axial tensioning force to the two receiving portions to axially pull the two connectors closer together and maintain the locked state, so that the flow channels on the two connectors are sealed and connected, thereby improving the sealing effect.

[0051] Preferably, the locking portion includes a locking surface, and the receiving portion includes a receiving surface, and the locking surfaces are respectively pressed against the corresponding receiving surfaces to form a locking fit.

[0052] When the locking part is inserted into the receiving part, the locking surfaces respectively abut against a corresponding receiving surface tightly. To achieve the axial docking and locking of the two connectors, the two locking surfaces are arranged oppositely, and the receiving surfaces on the two connectors face away from each other, so as to apply an axial tensile force to them when the locking surfaces abut against their respective receiving surfaces, and keep the two connectors close to each other, compressing the elastic sealing part to seal and dock the two flow channels.

[0053] Preferably, the locking part includes two locking plates, the locking surfaces are located on the locking plates, the receiving part includes a receiving groove opened on the side surface of the main body, the receiving groove includes the receiving surface and a second opening located on the side surface of the main body. When the two connectors are axially docked into a sealed position, at least part of the projection of the locking plate along the axial direction overlaps with the receiving groove.

[0054] The receiving groove can accommodate the locking plate therein, so that most of the locking part is located inside the main body, which is beneficial to avoiding the locking part being exposed outside and being accidentally touched and separated from the main body. In addition, at least part of the projection of the locking plate along the axial direction overlaps with the receiving groove, so that the contact area between the locking plate and the receiving groove is relatively large, which is beneficial to improving the force application balance of the locking plate on the receiving groove, and further improving the clamping and locking effect of the locking part and the sealing effect of the axial docking of the two connectors.

[0055] Preferably, the axial distance of the receiving groove tends to become smaller from the direction close to the flow channel to the direction away from the flow channel along the direction parallel to the radial direction. Only at the sealed position, the whole locking part is in the receiving groove, and the receiving surface of the receiving groove applies an axial pre-tightening force to the locking surface of the locking part.

[0056] The axial distance of the receiving groove refers to the axial distance between the two receiving surfaces of the receiving grooves on the two connectors that are adapted to the same locking part when the two connectors are axially docked. It can be understood that the end of the receiving surface close to the flow channel is the innermost end, and the end away from the flow channel is the outermost end. The axial distance between the outermost ends of the two receiving surfaces is smaller than the axial distance between the innermost ends. Thus, when the locking plate is inserted into the receiving groove, since the axial distance between the two receiving surfaces gradually becomes larger, while the axial distance between the two positions where the locking plates abut against the receiving surfaces remains basically unchanged, the locking surface on the locking plate applies an axial acting force to the receiving surface, making the two connectors approach axially, and then compressing the elastic sealing part to realize the sealed docking of the two connectors and the sealed connection of the flow channels. Similarly, the receiving surface of the receiving groove applies an axial pre-tightening force to the locking surface of the locking part, so that the locking part and the receiving part remain in a locked state, and the locking part is stably locked and matched with the locking area to ensure the sealing performance of the two connectors.

[0057] Preferably, the axial distance between the two locking plates is D1. When the two connectors are in the pre-sealed position, the minimum axial distance between the receiving surfaces of two axially adjacent receiving grooves is D2, and D1 / D2 = 0.7 - 0.95;

[0058] As can be seen from the above, the axial distance D1 between the two locking plates refers to the axial distance between the two locking surfaces, and it is also the axial distance between the innermost ends of the receiving surfaces when the two connectors are in the sealed position and the receiving surfaces are in contact with the locking surfaces. D2 refers to the axial distance between the outermost ends of the two receiving surfaces when the two connectors are in the pre-sealed position. Controlling the value of D1 / D2 aims to control the difficulty of the locking plate being inserted into the receiving groove and the locking force. If the value of D1 / D2 is too small, it means that D1 is too small, and it is difficult for the two locking plates to be inserted into the corresponding receiving grooves simultaneously, which easily causes the force application directions of the two main bodies to deviate, resulting in the docking failure of the two main bodies and the internal flow channel being connected to the outside. If the value of D1 / D2 is too large, the difference between D1 and D2 is small, and the axial displacement of the two connectors during the transition from the pre-sealed position to the sealed position is small, resulting in insufficient compression of the elastic sealing part, poor sealing effect, and insufficient axial pre-tightening force between the receiving surface and the locking surface. The locking effect of the two is also poor, and the locking part is easily withdrawn from the receiving groove under the influence of external forces, resulting in locking failure and the inability to seal and connect the flow channel, causing pollution.

[0059] Preferably, the length of the receiving groove in the radial direction of the flow channel is L1, and the length of the locking plate in the radial direction of the flow channel is L2, and L1 / L2 = 1.2 - 5.

[0060] The radial length L1 of the receiving groove represents the distance between the outermost end and the innermost end of the receiving surface, and the receiving surface applies an axial pre-tightening force to the locking surface of the locking plate to fix the locking plate in the receiving groove. Based on the moment, the longer L1 is, the greater the axial pre-tightening force of the outermost end of the receiving surface on the locking plate, but L1 should not be too long to avoid the connector being too large in volume. When the two connectors are in the sealed position and the locking plate is completely placed in the receiving groove, the radial length L2 of the locking plate is the insertion depth and the locking depth of the locking plate and the receiving groove. The larger L2 is, the larger the contact area between the locking plate and the receiving groove, and the better the locking effect, but it will result in a longer insertion process. Therefore, it is necessary to control the value of L1 / L2 so that the receiving surface has an appropriate axial pre-tightening force on the locking surface and can achieve rapid insertion and locking. If the value of L1 / L2 is too small, it means that L2 is too long, making it difficult to achieve rapid locking, difficult to ensure the coherence and rapidity of the sealing action, and not conducive to maintaining the accuracy of the alignment process before the two main bodies are locked. If the value of L1 / L2 is too large, either L1 is too long, resulting in the connector being too large in volume, or L2 is too short, resulting in insufficient contact area between the locking plate and the receiving groove, and the locking plate is easily detached from the receiving groove.

[0061] Preferably, the end parts of the two locking plates respectively have third relief surfaces, and the two third relief surfaces are inclined relative to each other. When the locking member cooperates with the locking area, the two third relief surfaces are respectively in pressing fit with the receiving parts of the two connectors, guiding the locking plates into the corresponding receiving grooves.

[0062] The function of the third relief surface is that when the locking plate is inserted into the receiving groove, the third relief surface first contacts the outermost end of the receiving groove and gradually compresses the adjacent side walls of the two receiving grooves, so that the locking plate can enter the receiving groove more labor - savingly. Then, the locking surface abuts against the receiving surface and applies an axial force, further compressing the adjacent side walls of the two receiving grooves until the locking plate completely enters the receiving groove.

[0063] Preferably, the locking member further includes a connecting part connecting the two locking plates. In the sealed position, the locking plates are in locking fit with the corresponding receiving grooves, and the radial projection of the connecting part partially overlaps with the radial projection of the first surfaces of the two bodies;

[0064] Define the direction of the line connecting the circumferential two ends of the connecting part as the first direction, the first direction is parallel to the radial direction of the flow channel, the maximum length of the body in the first direction is L3, the maximum length of the circumferential two ends of the connecting part in the first direction is L4, and L4 / L3 = 0.3 - 0.7.

[0065] L3 represents the maximum length of the body in the first direction. When the body is cylindrical, L3 represents the diameter of the body. When the body is square, L3 represents the length of the longest side in the first direction. Controlling the value of L4 / L3, that is, controlling the proportion of the locking member and the locking area on the body. If the ratio is too small, the proportion of the locking area on the body is relatively small, and the force - applying range on the body is relatively concentrated, and the body is prone to skew or shift during the locking process, and the locking effect is not good. If the ratio is too large, the proportion of the locking area on the body is too large. On the one hand, it is not convenient for the staff to operate, and on the other hand, it will occupy the position of the clamping member, affecting the stability of the two connectors in the pre - sealed position.

[0066] Preferably, the locking member is provided with a stop portion, and the body is provided with a blocking portion. The stop portion cooperates with the blocking portion to prevent the locking member from sliding in the direction away from the flow channel.

[0067] The stop portion is a barb, the barb is located at the end of the locking member close to the flow channel, and extends along the radial direction of the body or along a direction parallel to the radial direction. The blocking portion is a barb groove located inside the body. In the sealed position, the barb and the barb groove are hooked to each other;

[0068] Or,

[0069] The locking members include at least two. The stopping portion on one of the locking members is a first barb, and the stopping portion on the other locking member is a second barb. The first barb and the second barb are respectively located at the end of the locking member close to the flow channel, extending along the radial direction of the main body or along a direction parallel to the radial direction. The blocking portion is a through groove located inside the main body, and the through direction is the same as the extending direction of the first barb and the second barb. In the sealed position, the first barb and / or the second barb penetrate into the through groove and hook each other;

[0070] Or

[0071] The stopping portion is a sliding member of the locking member, and the blocking portion is an inclined block provided on the sliding member of the main body. The sliding member is slidably matched with the sliding member, and the inclined block is provided on the sliding path of the sliding member, including a guiding inclined surface and a stopping surface. In the sealed position, the sliding member abuts against the stopping surface;

[0072] Or

[0073] The stopping portion is a concave point provided on the locking member, and the blocking portion is a convex point provided on the main body. In the sealed position, the convex point is adaptively clamped with the concave point.

[0074] Through the above solutions, the locking member can be prevented from sliding away from the flow channel, the connection firmness between the locking member and the locking area can be improved, and further the sealing effect of the axial docking of the two connectors can be improved.

[0075] To achieve the above object, the present invention also adopts the following technical solution:

[0076] A sterile connector includes the above-mentioned connector, and also includes a bacteriostatic film, which is removably connected to the first surface radially, used to cover the flow channel and the elastic sealing portion, and also used to be removed at the pre-sealed position to make the two elastic sealing portions contact each other and make the two flow channels sealed and communicated. The position of the bacteriostatic film does not overlap with the position of the clamping member.

[0077] In the sterile connector of the present invention, the position of the bacteriostatic film does not overlap with the position of the clamping member. Removing the bacteriostatic film will not interfere with the clamping member. At the same time, by setting the number and position of the clamping members, the two connectors also have high stability at the pre-sealed position. Even when a force is applied to the main body when removing the bacteriostatic film, the pre-sealed position can be maintained, and at the same time, the two elastic sealing portions are made to contact each other, and the two flow channels are sealed and communicated on the premise of avoiding the contact between the flow channel and the outside.

[0078] Preferably, the sterile connector includes a sterile sealing cap, which covers the first surface of the connector and forms a sealed connection, and the sterile sealing cap is in clamping cooperation with the clamping member.

[0079] The function of the sterile sealing cap is to protect the first surface of the main body and the bacteria-isolating film covering the flow channel. The bacteria-isolating film can be stored in the sterile sealing cap to prevent accidental removal, which may lead to the connection between the inside of the flow channel and the outside world and cause contamination.

[0080] Preferably, an air inlet is provided on the sterile sealing cap, and the axial projection of the air inlet is located within the axial projection of the bacteria-isolating film. The function of the air inlet is to maintain the internal and external pressure balance when the sterile sealing cap is connected to the connector. Especially for the bacteria-isolating film, it can prevent the pressure increase caused by the space compression when the sterile sealing cap is connected to the connector, which may cause the bacteria-isolating film to be deformed or even ruptured under pressure, affecting the sterility of the sterile connector before use.

[0081] Preferably, a positioning point is provided on the connector, and a positioning portion cooperating with the positioning point is provided on the sterile sealing cap. Through the cooperation of the positioning point and the positioning portion, the accurate alignment and stable connection between the sterile sealing cap and the connector can be achieved. At the same time, it also makes it easier to disassemble the sterile sealing cap from the connector, improving the operation efficiency when the two connectors are docked.

[0082] Preferably, the sterile connector further includes a locking member. An avoidance space for accommodating the locking member is provided on the inner side of the peripheral edge of the sterile sealing cap. The locking member is stored between the sterile sealing cap and the connector, improving the operation efficiency when the two connectors are docked. There is no need to store the locking member separately. After the operator takes out the locking member from the avoidance space, it can be used, avoiding the situation where the locking member is lacking when the connectors are docked.

[0083] Preferably, a baffle is provided on the peripheral edge of the sterile sealing cap. The baffle extends axially to form an avoidance space for accommodating the locking member with the main body of the connector. One of the functions of the baffle is to serve as the setting position of the positioning portion, providing a radial pre-tightening force when the positioning portion cooperates with the positioning point to improve the firmness of the sealed connection between the sterile sealing cap and the connector. Another function is to form an avoidance space to accommodate the locking member.

[0084] In summary, compared with the prior art, the present invention has at least the following beneficial effects:

[0085] The aseptic connector assembly of the present invention adopts two connectors to dock. In order to ensure the sterility of the flow channel, a clamping piece is used to make the two connectors enter the pre-sealing position first. In this state, the flow channels of the two connectors are initially in contact, and because the total number of the clamping pieces in the two connectors is at least three, and the line connecting the positions of at least two of the clamping pieces passes through the flow channel, the angle Q formed by the line connecting the at least two of the clamping pieces and the axis of the flow channel is in the range of 120°≤Q≤180°, and Q is the maximum angle formed by the line connecting the above two clamping pieces and the axis of the flow channel. Therefore, the two connectors are in the axis When docking, each snap-in can effectively disperse the force applied to the connector, avoid local stress concentration, and avoid the situation where the forces of any two snap-in are in the same straight line and tipping over, thereby ensuring the uniformity and balance of force at all parts of the connector, reducing the probability of the two connectors being exposed due to displacement or swinging during the docking process, thereby improving the stability of the two connectors in the pre-sealed position; and then using the locking piece and the locking area to cooperate, the two connectors are axially docked into a sealed position, achieving sealed docking of the flow channels of the two connectors, separating the inside of the flow channel from the outside, and ensuring the sterility of the inside of the flow channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0087] Figure 1 This is a schematic structural diagram of a sterile connector assembly according to Embodiment 1 of the present invention, wherein two connectors are in a sealed position.

[0088] Figure 2 for Figure 1 Schematic cross-sectional view of the sterile connector assembly.

[0089] Figure 3 for Figure 1 Another schematic cross-sectional view of the sterile connector assembly in FIG.

[0090] Figure 4 Schematic diagram of the positions of the locking area and the snap-fitting parts of the sterile connector assembly according to the first embodiment of the present invention.

[0091] Figure 5 This is a schematic structural diagram of the sterile connector assembly according to the first embodiment of the present invention, wherein the two connectors are in the pre-sealing position and the bacterial isolation membrane has been removed.

[0092] Figure 6Schematic structural diagram of the aseptic connector assembly according to Embodiment 1 of the present invention, wherein the two connectors are in the pre-sealed position and the bacteria-isolating film has not been removed.

[0093] Figure 7 It is Figure 6 Side schematic diagram of the aseptic connector assembly.

[0094] Figure 8 It is Figure 7 Enlarged view of location A in

[0095] Figure 9 It is Figure 6 Cross-sectional schematic diagram of the aseptic connector assembly.

[0096] Figure 10 It is Figure 6 Another cross-sectional schematic diagram of the aseptic connector assembly.

[0097] Figure 11 Schematic structural diagram of the connector according to Embodiment 1 of the present invention.

[0098] Figure 12 Schematic structural diagram of the locking member according to Embodiment 1 of the present invention.

[0099] Figure 13 Schematic diagram of the position of the locking area and the clamping member of the aseptic connector assembly according to Embodiment 2 of the present invention.

[0100] Figure 14 Schematic diagram of the position of the locking area and the clamping member of the aseptic connector assembly according to Embodiment 3 of the present invention.

[0101] Figure 15 Schematic diagram of the position of the locking area and the clamping member of the aseptic connector assembly according to Embodiment 4 of the present invention.

[0102] Figure 16 Schematic structural diagram of the aseptic connector assembly according to Embodiment 5 of the present invention.

[0103] Figure 17 Schematic structural diagram of the aseptic connector according to Embodiment 6 of the present invention.

[0104] Figure 18 It is Figure 17 Cross-sectional schematic diagram of the aseptic connector.

[0105] Figure 19 It is Figure 17 Another cross-sectional schematic diagram of the aseptic connector.

[0106] Figure 20 Schematic structural diagram of the aseptic connector according to Embodiment 7 of the present invention.

[0107] Figure 21Schematic structural diagram of the sterile sealing cap according to the sixth embodiment of the present invention.

[0108] Figure 22 Schematic position diagram of the clamping member of the sterile connector according to the seventh embodiment of the present invention.

[0109] Figure 23 Schematic position diagram of the clamping member of the sterile connector according to the eighth embodiment of the present invention.

[0110] Figure 24 Schematic cross-sectional structural diagram of the sterile connector assembly according to the ninth embodiment of the present invention.

[0111] Figure 25 Schematic structural diagram of the locking member according to the ninth embodiment of the present invention.

[0112] Figure 26 Schematic structural diagram of the sterile connector assembly according to the tenth embodiment of the present invention.

[0113] Figure 27 Schematic cross-sectional structural diagram of the sterile connector assembly according to the tenth embodiment of the present invention.

[0114] Figure 28 Schematic mating structural diagram of the locking member and the connector according to the eleventh embodiment of the present invention.

[0115] Figure 29 Schematic cross-sectional structural diagram of the sterile connector assembly according to the eleventh embodiment of the present invention.

[0116] Figure 30 Schematic cross-sectional structural diagram of the sterile connector assembly according to the twelfth embodiment of the present invention.

[0117] Explanation of reference numerals

[0118] 10. Connector; 11. Body; 111. First surface; 112. Second surface; 12. Flow channel; 13. Elastic sealing part; 14. Clamping member; 141. Clamping part; 1411. Movable part; 1412. First hook; 142. Buckling part; 1421. Block; 143. First plane; 144. First inclined surface; 15. Locking area; 151. Sliding member; 152. Chute; 153. First section; 154. Second section; 155. Second relief surface; 156. Receiving groove; 1561. Inclined groove; 1562. Card slot; 1563. Protrusion; 157. Receiving surface; 158. First opening; 159. Second opening; 16. Bacteriostatic film; 17. Barbed groove; 18. Inclined block; 181. Guiding inclined surface; 182. Stopping surface; 19. Through groove;

[0119] 20. Locking member; 21. Sliding member; 22. First relief surface; 23. Locking plate; 231. Locking surface; 24. Plier part; 25. Third relief surface; 26. Concave point; 27. Connecting part; 28. Barb; 281. First barb; 282. Second barb;

[0120] 30. Sterile sealing cap; 31. Air inlet; 32. Positioning part; 33. Baffle; 34. Avoidance space; 35. Card point. Detailed implementation mode

[0121] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0122] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0123] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0124] See Figure 1-10 , the embodiment of the present invention discloses a sterile connector assembly, Figures 1 to 3 The two connectors 10 of the first embodiment shown are in the sealed position, Figures 5 to 10In the first embodiment shown, two connectors 10 are in a pre-sealed position, axially butted by two connectors 10 via a locking member 20. Among them, each connector 10 includes a main body 11, a flow channel 12, an elastic sealing portion 13, and a clamping member 14 and a locking area 15 located on the main body 11. The main body 11 includes a first surface 111 and a second surface 112 axially opposite to the first surface 111. The flow channel 12 axially penetrates the main body 11 from the first surface 111 for fluid circulation. The elastic sealing portion 13 is placed in the flow channel 12 and continuously extends circumferentially along the inner wall of the flow channel 12. The elastic sealing portion 13 protrudes from the first surface 111. Thus, when the two connectors 10 are axially butted, the ends of the elastic sealing portions 13 are sealed against each other to seal the axially butted portion of the two connectors 10, and the flow channels 12 inside the elastic sealing portions 13 are sealed and connected to each other, isolated from the outside. The functions of the clamping member 14, the locking area 15, and the locking member 20 are to apply axially opposite forces to the two connectors 10 so that the two connectors 10 maintain the pre-sealed position or the sealed position.

[0125] It should be noted that the radial, axial and other ranges described in the embodiments of the present invention are the radial and axial directions of the main body 11 and the flow channel 12. That is, as Figure 1 shown, the flow channel 12 is located at the center of the main body 11 and extends along the axial direction of the main body 11. The center of the flow channel 12 coincides or substantially coincides with the center of the main body 11. The direction perpendicular to the axis and passing through the center is the radial direction, and the direction on the main body 11 parallel to a certain radial direction and not passing through the center is the radial offset direction.

[0126] Specifically, the clamping members 14 of the two connectors 10 are clamped to each other, so that the two connectors 10 are axially butted to the pre-sealed position. At this time, the two elastic sealing portions 13 are in contact with each other and the two flow channels 12 are axially butted and communicated, and the inside of the flow channel 12 is not communicated with the outside. Since the compression deformation amount of the elastic sealing portion 13 is small and the sealing effect is poor, the two connectors 10 need to be accurately aligned to ensure that the flow channel 12 is not communicated with the outside. The total number of the clamping members 14 in the two connectors 10 is at least three. After the two connectors 10 are axially butted, the connection line of the positions of at least two clamping members 14 passes through the flow channel 12, and the angle Q formed by the connection lines of at least two clamping members 14 and the axis of the flow channel 12, as Figure 4As shown, the angle Q formed by the connecting lines of at least two engaging members 14 and the axis of the flow channel 12 ranges from 120° ≤ Q ≤ 180°, and Q is the maximum angle formed by the connecting lines of the above two engaging members 14 and the axis of the flow channel 12 (due to the space occupied by the volume of the engaging member 14 itself, so here the maximum angle formed by the connecting lines of the two engaging members 14 and the axis of the flow channel 12 is selected). Therefore, the forces on any two engaging members 14 on a connector 10 are not on the same straight line. When the two connectors 10 are in the pre-sealing position, the forces received by their respective engaging members 14 and transmitted to the main body 11 ensure that the forces on each part of the connector 10 are balanced. No matter what external force acts in which direction, there is a corresponding engaging member 14 to provide a reaction force, realizing the all-round limit of the connector 10, reducing the probability that the two connectors 10 are offset or swayed during the docking process, resulting in the exposure of the flow channel 12, and thus improving the stability of the two connectors 10 in the pre-sealing position.

[0127] The cooperation between the locking area 15 and the locking member 20 enables the two connectors 10 to transition from the pre-sealing position to the sealing position and remain in the sealing position. At this time, the two elastic sealing parts 13 are compressed and abutted, and the two flow channels 12 form an axially extending sealed channel. The compression deformation amount of the elastic sealing part 13 is appropriate, and the sealing effect is good. The flow channels 12 of the two connectors 10 are hermetically docked, separating the inside of the flow channel 12 from the outside world, ensuring the sterility inside the flow channel 12.

[0128] There are various numbers and setting positions of the engaging members 14, and several of them will be described by way of example below.

[0129] Such as Figure 11 In the first embodiment shown, the number of engaging members 14 on a connector 10 is four, and they are circumferentially offset from the locking area 15, that is, their projections on the first surface 111 along the axis do not overlap; as Figure 4 shown, when the two connectors 10 are axially docked, the engaging members 14 in the relative positions are engaged with each other, forming four groups of engaging members 14, and the four groups of engaging members 14 are evenly distributed circumferentially. Figure 4 In, the red represents the engaging members 14 on one connector 10, and the black represents the engaging members 14 on the other connector 10. When the engaging members 14 and the locking area 15 are axially docking the two connectors 10, they will both exert forces on the main body 11. The difference is that the engaging members 14 exert forces on the two main bodies 11 when the two connectors 10 are in the pre-sealing position, and the locking area 15 and the locking member 20 exert forces on the two main bodies 11 when the two connectors 10 are in the sealing position; the circumferential offset distribution of the engaging members 14 and the locking area 15 avoids the deformation of the locking area 15 caused by the force exerted by the engaging members 14 in the pre-sealing position, thereby affecting the cooperation between the locking area 15 and the locking member 20, so as to ensure the accuracy of the respective actions of the engaging members 14 and the locking area 15, and further ensure the final sealing performance.

[0130] Based on this, the maximum circumferential spacing between two adjacent clamping members 14 is H1, and the minimum circumferential spacing between the clamping member 14 and the adjacent locking area 15 is H2, satisfying H1 / H2 = 1 - 6. This is mainly to control the circumferential spacing between the clamping member 14 and the locking area 15. On the one hand, it is necessary to ensure that the clamping member 14 is relatively close to the locking area 15. When the two connectors 10 are in the pre-sealed position, the force exerted by the clamping member 14 on the main body 11 can exert a certain force on the elastic sealing portion 13, making the first surfaces 111 of the two main bodies 11 relatively close, which is convenient for the subsequent locking member 20 to cooperate with the locking area 15. On the other hand, there is still a certain circumferential spacing between the clamping member 14 and the locking area 15 to prevent the deformation of the clamping member 14 under force from affecting the locking area 15. At the same time, the clamping member 14 is relatively close to the adjacent locking area 15 on one side, which is beneficial for the clamping members 14 of the two connectors 10 to be quickly actuated to cooperate with the locking member 20 and the locking area 15 after being clamped to the pre-sealed position, ensuring the coherence and rapidity of the sealing action.

[0131] As Figure 13 shown in Embodiment 2 and Figure 14 shown in Embodiment 3, the number of clamping members 14 on one connector 10 is three, and they are circumferentially offset from the locking area 15. When the two connectors 10 are axially docked, the clamping members 14 in the relative positions are engaged with each other, forming three groups of clamping members 14, and the three groups of clamping members 14 are evenly distributed circumferentially.

[0132] As Figure 15 shown in Embodiment 4, the number of clamping members 14 on one connector 10 is three, and the position of one clamping member 14 overlaps with the position of the locking area 15 circumferentially, located above or below the axis of the locking area 15, and they do not interfere with each other during their respective use. When the two connectors 10 are axially docked, the clamping members 14 in the relative positions are engaged with each other, forming three groups of clamping members 14, and the three groups of clamping members 14 are evenly distributed circumferentially.

[0133] In each of the above embodiments, the clamping member 14 includes a clamping portion 141 located on the main body 11 and a buckle portion 142 that cooperates with the clamping portion 141. For details, reference can be made to Figure 11 , the clamping portion 141 includes a movable portion 1411 extending from the main body 11 and a first hook 1412 located at the end of the movable portion 1411. Specifically, on one connector 10, the clamping portion 141 and the buckle portion 142 are circumferentially spaced apart. On the other connector 10, the clamping portion 141 and the buckle portion 142 are also circumferentially spaced apart. When the two connectors 10 are axially docked, the clamping portion 141 on one and the buckle portion 142 on the other are engaged with each other, making the two connectors 10 in the pre-sealed position. The specific clamping method can be referred to Figure 7 .

[0134] Preferably, in a connector 10, the orientations of the first hooks 1412 of at least two engaging portions 141 are opposite to each other in the circumferential direction. The meaning of "opposite in the circumferential direction" includes that the orientations of the first hooks 1412 are arranged along the circumferential direction of the main body 11 and are opposite to each other. For example, the orientation of the first hook 1412 of one engaging portion 141 is along the clockwise direction of the main body 11, and the orientation of the first hook 1412 of the other engaging portion 141 is along the counterclockwise direction of the main body 11. Another example is that the first hooks 1412 of the two engaging portions 141 are located on the same circumference of the main body 11. As Figure 4 shown, the red engaging portion 141 and the buckling portion 142 belong to one connector, and the black engaging portion 141 and the buckling portion 142 belong to another connector. The triangular part of the engaging portion 141 represents the first hook 1412, and the pointed angle direction of the triangle represents the orientation of the first hook 1412. Therefore, when the orientations of the two first hooks 1412 located on the same circumference of the same connector cause the first hooks 1412 to exert forces on the buckling portion 142 of the other connector 10, the forces can be balanced with each other along the circumferential direction of the main body 11. With such a setting, on the one hand, during the engagement, the forces received by each part of one connector 10 are balanced with each other, improving the force uniformity of the connector 10, and the connector 10 will not deflect or swing. On the other hand, after the two connectors 10 are in the pre-sealing position, at least two first hooks 1412 cooperate with the buckling portion 142, and can generate circumferential component forces or tangential component forces, which play a role in restricting the rotation of the connector 10, avoiding the failure of the engagement caused by the rotation of the connector 10 in the pre-sealing position, and further avoiding the failure of the docking of the two flow channels 12.

[0135] In Figure 13 the second embodiment shown, the engaging portion 141 and the buckling portion 142 represented by the red line represent the engaging members 14 on one connector 10, and the engaging portion 141 and the buckling portion 142 represented by the black line represent the engaging members 14 on the other connector 10. The triangular part of the engaging portion 141 represents the first hook 1412, and the pointed angle direction of the triangle represents the orientation of the first hook 1412. That is, in one connector 10, the orientations of the first hooks 1412 of the two engaging portions 141 are relatively opposite. Thus, during the engagement, the forces received by one connector 10 can cancel each other out, and the connector 10 will not deflect or swing.

[0136] In Figure 14In the third embodiment shown, the engaging portion 141 and the latching portion 142 of the red line represent the engaging member 14 on one connector 10, and the engaging portion 141 and the latching portion 142 of the black line represent the engaging member 14 on the other connector 10. The triangular portion of the engaging portion 141 represents the first hook 1412, and the pointed angle direction of the triangle represents the orientation of the first hook 1412, that is, the first hooks 1412 of the engaging portions 141 in the two connectors 10 are all oriented towards the center of the flow channel 12. Since the three engaging portions 141 are circumferentially evenly distributed when the two connectors 10 are in the pre-sealing position, the resultant force direction formed points to the center of the flow channel 12. Similarly, the forces received by the connectors 10 can be offset from each other, and at the same time, the relative rotation of the two connectors 10 is restricted to ensure the precise docking of the two flow channels 12.

[0137] In the first embodiment as shown in Figure 4 , after the two connectors 10 are axially butted, the orientations of the first hooks 1412 of the non-adjacent two engaging members 14 are opposite. As can be seen from the above, the orientations of at least two first hooks 1412 on the same connector 10 are circumferentially opposite. After the two connectors 10 are axially butted, the adjacent two first hooks 1412 belong to different connectors 10, and the non-adjacent two first hooks 1412 belong to the same connector 10, so that the first hooks 1412 of different connectors 10 are circumferentially spaced apart to ensure the stability during the latching process and after latching.

[0138] When the two connectors 10 transition from the pre-sealing position to the sealing position, the engaging portion 141 no longer exerts a force on the latching portion 142, avoiding interference with the cooperation between the locking member 20 and the locking area 15. Therefore, in the sealing position, in the two connectors 10, the engaging portion 141 of one and the latching portion 142 of the other are in a non-latching state, and the first hook 1412 of the engaging portion 141 and the latching portion 142 have an axial gap, as shown in Figure 1 . Such a setting indicates that the first surfaces 111 of the main bodies 11 of the two connectors 10 are further close to each other, and the elastic sealing portion 13 at the flow channel 12 is further compressed, improving the sealing performance.

[0139] As shown in Figure 1 , Figure 5 and Figure 8As shown, the snap-in part 141 includes a movable part 1411 extending from the main body 11 and a first hook 1412 located at the end of the movable part 1411. The movable part 1411 is L-shaped, first extending circumferentially and then axially; the snap part 142 includes a block 1421 extending circumferentially from the main body 11. Both the first hook 1412 and the block include a first plane 143 and a first inclined surface 144. The inclined directions of the two first inclined surfaces 144 are the same. When the first hook 1412 is snapped onto the block 1421, the two first inclined surfaces 144 abut against each other, pushing the movable part 1411 and the first hook 1412 away from the block 1421 until the two first planes 143 are aligned. Then the movable part 1411 returns to its original position, and the first hook 1412 is snapped onto the block 1421, with the two first planes 143 abutting against each other to achieve pre-sealing, as Figure 8 shown; as Figure 1 shown, and in the sealed position, the gap between the first hook 1412 of the snap-in part 141 and the snap part 142 refers to the gap between the two first planes 143.

[0140] Of course, in other embodiments, the snap part 142 can be arranged on the second surface 112 of the main body 11 and includes a snap plane or a snap groove; the movable part 1411 is also L-shaped, first extending circumferentially and then axially. The snapping process is similar to that in the first embodiment. In the pre-sealed position, the plane of the first hook 1412 is snapped onto the snap plane of the second surface 112 or the snap part 142.

[0141] Figure 3 In, when the two connectors are in the sealed position, the axial distance between the first surfaces 111 of the two main bodies 11 is d1. Figure 10In the pre-sealing position, the axial distance between the first surfaces 111 of the two bodies 11 is d2. As described above, when the two connectors 10 transition from the pre-sealing position to the sealing position, the first surfaces 111 of the two bodies 11 will move closer together and compress the elastic sealing portion 13. Therefore, d1 < d2. By controlling d1 / d2 = 0.1 - 0.8, the purpose is to control the compression amount of the elastic sealing portion 13 and ensure the sealing performance. If the ratio is too large, the compression deformation of the elastic sealing portion 13 is small, which is likely to result in low sealing performance between the elastic sealing portions 13. If the ratio is too small, it means that the two connectors 10 still have a relatively large axial distance in the pre-sealing position, and a relatively large distance needs to be moved when transitioning from the pre-sealing position to the sealing position. In one case, when the two connectors 10 are in the pre-sealing position, the two elastic sealing portions 13 are prone to misalignment, resulting in the exposure of the flow channel 12 and the internal communication of the flow channel 12 with the outside. In another case, the elastic sealing portion 13 protrudes more from the flow channel 12. When the two connectors 10 are in the pre-sealing position, the two elastic sealing portions 13 are in contact. Then, when transitioning from the pre-sealing position to the sealing position, the compression deformation of the elastic sealing portion 13 is relatively large, and the axial movement distance of the two connectors 10 is relatively long, which is likely to cause the alignment state of the two connectors 10 to shift and affect the sealing performance between them.

[0142] As Figure 4 shown in Embodiment 1, the number of locking regions 15 is two, and they are symmetrically arranged about the center of the flow channel 12 and are located on the radial sides of the flow channel 12 respectively. Here, the radial direction refers to the radial direction connecting the center of the locking region 15 and the center of the flow channel 12, which is defined as the first radial direction. The locking regions 15 are used to cooperate with the locking member 20 to apply a force to the connectors 10 when the two connectors 10 are docked in the sealing position to keep the two flow channels 12 in sealed communication. The number of locking regions 15 is two and they are located on the radial sides of the flow channel 12, so the force applied to the connectors 10 is relatively dispersed and uniform, making the compression deformation of the elastic sealing portion 13 circumferentially uniform, with better sealing performance. Moreover, the number and position of the locking regions 15 are convenient for manual operation, which is beneficial to improving the operation efficiency.

[0143] Of course, in some other embodiments, the number of locking regions 15 is three and they are evenly distributed circumferentially, which can also ensure the stability and locking effect of the two connectors 10 in the sealing position.

[0144] As Figure 3 shown in Embodiment 1 and Figure 16 Embodiment 5 shown, when the two connectors 10 are docked in the sealing position, the radial projection of the locking member 20 covers the elastic sealing portion 13. The elastic sealing portion 13 is entirely within the force application range of the locking member 20 and is effectively squeezed and maintained in a stable compressed state, thereby providing a better sealing effect.

[0145] There are various ways of cooperation between the locking member 20 and the locking area 15. Several of them will be described by way of example below.

[0146] For example Figures 1 to 10 In the first embodiment shown, in order to improve the cooperation effect between the locking member 20 and the locking area 15, the locking member 20 includes a sliding member 21, and the locking area 15 includes a sliding member 151 provided on the main body 11. The sliding member 151 extends along a direction parallel to the first radial direction on the side surface of the main body 11, that is, the extension range of the sliding member 151 is the radial offset direction. The sliding member 21 and the sliding member 151 are slidably connected along a direction parallel to the first radial direction. For the main body 11, the force application direction is radial. For the sake of convenient representation, it is simplified to radial sliding below. For example Figure 11 As shown, in this embodiment, the sliding members 21 are located on both circumferential sides of the locking member 20 and are in the shape of bumps. The sliding member 151 is provided on the side of the main body 11 and is in the shape of a plate. The sliding member 151 has a chute 152 extending parallel to the first radial direction. The chute 152 has a first opening 158 facing the circumferential side surface of the locking member 20. The sliding member 21 can be inserted into the chute 152 from the first opening 158 and slide radially in the chute 152.

[0147] The pressure of the liquid in the flow channel 12 will act on the docking part of the two connectors 10. When the liquid pressure is relatively large, the two connectors 10 tend to separate from each other at the docking part, and the force they receive is along the axial direction. By slidably connecting the sliding member 21 and the sliding member 151 radially, that is, the locking member 20 approaches the center of the flow channel 12 by sliding radially. The force application direction during the locking process of the locking member 20 is radial, and at the same time, an axial tension force is applied to the two main bodies 11. The force application direction intersects perpendicularly with the direction of the force of the liquid on the connector 10. As long as the locking member 20 and the main body of the locking area 15 are not damaged, the axial tension force on the two main bodies 11 will not fail, which is beneficial to preventing the two main bodies 11 from separating axially. In addition, the sliding connection between the sliding member 21 and the sliding member 151 enables the locking member 20 to slide within the locking area 15, quickly adjusting the cooperation relationship between the locking member 20 and the locking area 15. The two connectors 10 can be quickly switched between the pre-sealing position and the sealing position. There is no need for alignment or positioning between the locking member 20 and the main body 11 during sliding, which avoids time and operation errors, etc., ensuring the coherence and rapidity of the sealing action. It is beneficial to promote the rapid locking between the locking member 20 and the main body 11, ensure the sterility inside the flow channel 12, and at the same time improve the stability and accuracy of the sliding process.

[0148] In some other embodiments, the sliding member 21 includes a chute 152, and the sliding member 151 includes a bump structure, that is, by swapping the positions of the chute 152 and the sliding member 21 in the first embodiment, rapid locking between the locking member 20 and the main body 11 can also be achieved.

[0149] For example Figure 11As shown, in the first embodiment, the chute 152 is formed on the side surface of the main body 11 and extends radially into the side structure of the main body 11; in other embodiments, the sliding member 151 can be disposed on the second surface 112 of the main body 11, or a groove parallel to the first radial direction can be formed on the second surface 112 of the main body 11, and the groove serves as the sliding member 151, and the chute 152 is formed on the side wall of the groove, and other feasible solutions.

[0150] Generally speaking, the chute 152 is a closed groove on the sliding member 151. Therefore, the locking member 20 can be hung on the two main bodies 11 through the pre-insertion of the sliding member 21 into the chute 152. At this time, the two connectors 10 are in the pre-sealed position. The locking member 20 is inserted into the locking area 15 through the sliding member 21, but the axial distance between the two connectors 10 is not reduced; in subsequent operations, there is no need to align the locking member 20 with the locking area 15 again. By directly pressing the locking member 20 inward, the two connectors 10 can be in the sealed position, which is more convenient to operate and reduces the risk of unsealing due to relative displacement or misalignment of the two connectors 10. The cooperation mode between the chute 152 and the sliding member 21 is simple and easy to process.

[0151] As Figure 2 and Figure 9 In the first embodiment shown, the chute 152 includes a first section 153 close to the flow channel 12 and a second section 154 far from the flow channel 12. In the pre-sealed position, the sliding member 21 is located in the second section 154, and in the sealed position, the sliding member 21 is located in the first section 153. The first fitting gap between the first section 153 and the sliding member 21 is larger than the second fitting gap between the second section 154 and the sliding member 21.

[0152] The first fitting gap is the gap between the sliding member 21 and the inner wall of the first section 153 when the sliding member 21 is in the first section 153, and the second fitting gap is the gap between the sliding member 21 and the inner wall of the second section 154 when the sliding member 21 is in the second section 154; when the two connectors 10 transition from the pre-sealed position to the sealed position, the first surfaces 111 of the two main bodies 11 will approach each other relatively. Under the action of the axial tensile force of the locking member 20 on the two main bodies 11, the chutes 152 of the two locking areas 15 will approach each other relative to the sliding member 21 on the locking member 20. Conversely, the sliding member 21 will tend to move axially away from the chute 152. Therefore, the first fitting gap between the first section 153 and the sliding member 21 is larger than the second fitting gap between the second section 154 and the sliding member 21, reserving an axial movement space for the sliding member 21 relative to the chute 152 to promote the sliding member 21 to slide from the second section 154 into the first section 153.

[0153] As Figure 2As shown, the side of the first section 153 away from the first surface 111 is a slope and a plane, and the side of the second section 154 away from the first surface 111 is a plane. The two planes are connected by the slope, so that the sliding member 21 can move smoothly along the inner side surface of the second section 154 to the inner side surface of the first section 153 in the slide groove 152.

[0154] like Figure 2 As shown, the axial spacing h1 of the first section 153 is the distance between the two inner walls of the first section 153 in the axial direction, specifically the distance between the upper and lower planes; the axial spacing h2 of the second section 154 refers to the distance between the two inner walls of the second section 154 in the axial direction, h1 / h2=1-1.2. The reason for this setting is that when in the pre-sealing position, the sliding member 21 is located in the second section 154. If the ratio of h1 to h2 is too large, it means that h1 is larger than h2. In order to ensure the sealing performance of the two connectors 10, the axial movement distance from the pre-sealing position to the sealing position is relatively fixed. h1 needs to meet the axial movement space required by the sliding member 21 in the first section 153 based on the axial movement distance of the two connectors 10, that is, h1 cannot be too small, and the sliding member 21 cannot be suspended in the first section 153, and it is also easy to move from the slide groove 1 52, that is, h1 cannot be too large, and when the ratio of h1 to h2 is too large, h2 will be too small, then the sliding member 21 is not easy to get into the slide groove 152, and it is difficult to slide in the slide groove 152, affecting the continuity and rapidity of the sealing action, when the ratio of h1 to h2 is too small, h2 will be too large, the sliding member 21 is easy to get out of the slide groove 152, and the locking member 20 cannot be matched with the locking area 15 in advance; therefore, it is necessary to control the ratio of h1 to h2 so that the sliding member 21 can slide smoothly in the slide groove 152, will not easily get out of the slide groove 152, and make the sliding member 21 have a suitable axial displacement when it moves to the first section 153 of the slide groove 152, which is compatible with the axial displacement of the two connectors 10 transitioning from the pre-sealing position to the sealing position, so as to avoid the sliding member 21 interfering with the axial sealing of the two connectors 10 and ensure the sealing effect.

[0155] In other embodiments, the side of the first section 153 away from the first surface 111 is a plane, and the side of the second section 154 away from the first surface 111 is a plane, and the two planes are connected by a step. The sliding member 21 will engage with the step when moving to the first section 153. If the two connectors 10 are maintained in a sealed state, the locking member 20 may be separated from the locking area 15 due to external force, and the step can block the movement of the sliding member 21, thereby locking the locking member 20 in the locking area 15.

[0156] like Figure 2As shown, the radial length of the first section 153 is h3, and the radial length of the second section 154 is h4. It should be noted that the above radial length is the length in the direction parallel to the first radial direction, and does not represent the direct distance from the first section or the second section to the center of the flow channel 12. The radial length of the first section 153 represents the radial movable distance of the sliding member 21 in the first section 153 when the two connectors 10 are in the sealing position, and the radial length of the second section 154 represents the sliding distance of the sliding member 21 in the second section 154 when the two connectors 10 transition from the pre-sealing position to the sealing position. h The reason why 3 / h4=0.3-4 is that, based on the size of the sliding member 21, if h3 is too large and the ratio of h3 to h4 is too large, it will easily cause the sliding member 21 at the sealing position to slip in the first section 153, affecting the stability and sealing effect of the two connectors 10 at the sealing position. If h3 is too small, it will easily cause the sliding member 21 to be difficult to enter the first section 153. If h4 is too large and the ratio of h3 to h4 is too small, it means that the sliding member 21 needs to move radially too long, making it difficult to achieve quick locking, which is not conducive to maintaining the accuracy of the alignment process before the two main bodies 11 are locked.

[0157] like Figure 11 and Figure 12 As shown, the end of the sliding member 151 away from the flow channel 12 has a second give way surface 155, and the second give way surface 155 is inclined toward the direction of the slide groove 152; the sliding member 21 has a first give way surface 22, and the first give way surface 22 and the second give way surface 155 are used in that the sliding member 21 on the locking member 20 needs to have a pre-tightening force to enter the slide groove 152. Therefore, the initial position of the sliding member 21 is aligned with the end of the sliding member 151 away from the flow channel 12, and the slide groove 152 is located on the inner side of the end of the sliding member 151 close to the flow channel 12, and the locking member 20 and the locking area 15 When mating, the first giving way surface 22 and the second giving way surface 155 are squeezed and matched, guiding the sliding member 21 into the slide groove 152, reducing the instantaneous resistance when the sliding member 21 and the sliding member 151 first contact, and causing the sliding member 21 to be deformed and accumulate force along the tangential direction. As the locking member 20 goes deeper, the sliding member 21 is opposite to the first opening 158 of the slide groove 152, and is reset and clamped into the second section 154 of the slide groove 152 under the action of the pre-tightening force, thereby realizing the mating connection between the sliding member 21 and the slide groove 152 without the need for other components, with a simple structure and easy operation.

[0158] like Figure 3 and Figure 10In the first embodiment shown, the locking area 15 includes a receiving portion located on the side surface of the main body 11, and the locking member 20 includes a locking portion; when the two connectors 10 are axially butted into a sealed position, the locking portions form a locking fit with the receiving portions of the two connectors 10. The fit between the locking portion and the receiving portion can be an interference fit or a mechanical clamping, as long as the locking fit between the two can be achieved. The locking portion of one locking member 20 correspondingly cooperates with the two receiving portions on the same side of the two connectors 10 to lock, and is used to apply an axial tension force to the two receiving portions, so as to axially pull the two connectors 10 closer and maintain the locked state, so that the flow channels 12 on the two connectors 10 are hermetically butted, improving the sealing effect.

[0159] As Figure 10-11 shown, the receiving portion in the first embodiment includes a receiving groove 156 opened on the side surface of the main body 11. The receiving groove 156 includes a receiving surface 157 and a second opening 159 located on the side surface of the main body 11. The second opening 159 is formed by the receiving groove 156 extending along a direction parallel to the first radial direction and penetrating the side surface of the main body 11, that is, the locking member 20 enters the receiving groove 156 through the second opening 159. The locking member 20 includes two locking plates 23 and a connecting portion 27 connecting the two locking plates 23. The two locking plates 23 are the locking portions of the locking member 20. After one locking plate 23 is inserted into one receiving groove 156, the locking surface 231 on the locking plate 23 abuts against the receiving surface 157 of the receiving groove 156. The locking surfaces 231 on the two locking plates 23 are arranged oppositely, and the receiving surfaces 157 on the two connectors 10 face away from each other, so as to apply an axial tension force when the locking surface 231 abuts against the respective receiving surface 157, and keep the two connectors 10 close to each other, compressing the elastic sealing portion 13 to hermetically butt the two flow channels 12. When the two connectors 10 are axially butted into a sealed position, the projection of the locking plate 23 and the receiving groove 156 along the axial direction at least partially overlap, and the receiving groove 156 can accommodate the locking plate 23 therein, so that most of the locking portion is located inside the main body 11, which is beneficial to avoiding the locking portion being exposed outside and being accidentally touched and separated from the main body 11. In addition, the projection of the locking plate 23 and the receiving groove 156 along the axial direction at least partially overlap, so that the contact area between the locking plate 23 and the receiving groove 156 is relatively large, which is beneficial to improving the force application balance of the locking plate 23 on the receiving groove 156, and further improving the clamping and locking effect of the locking member 20 and the sealing effect of the axial butt joint of the two connectors 10.

[0160] To prevent the locking plate 23 from slipping out of the receiving groove 156, the axial distance of the receiving groove 156 tends to become smaller along the first radial direction from the direction close to the flow channel 12 to the direction away from the flow channel 12. Only at the sealing position, the entire locking portion is within the receiving groove 156, and the receiving surface 157 of the receiving groove 156 exerts an axial pre-tightening force on the locking surface 231 of the locking portion. The axial distance of the receiving groove 156 refers to the axial distance between two receiving surfaces 157 of the receiving grooves 156 on two connectors 10 that are axially docked and are adapted to the same locking member 20 when the two connectors 10 are axially butted. It can be understood that the end of the receiving surface 157 close to the flow channel 12 is the innermost end, and the end away from the flow channel 12 is the outermost end. The axial distance between the outermost ends of the two receiving surfaces 157 is smaller than the axial distance between the innermost ends. Thus, when the locking plate 23 is inserted into the receiving groove 156, since the axial distance between the two receiving surfaces 157 gradually increases while the axial distance between the two positions where the locking plates 23 abut against the receiving surface 157 remains basically unchanged, the locking surface 231 on the locking plate 23 exerts an axial acting force on the receiving surface 157, causing the two connectors 10 to approach axially, thereby compressing the elastic sealing portion 13 and realizing the sealed docking of the two connectors 10 and the sealed connection of the flow channel 12. Similarly, the receiving surface 157 of the receiving groove 156 exerts an axial pre-tightening force on the locking surface 231 of the locking portion, keeping the locking portion and the receiving portion in a locked state, and the locking member 20 is stably and tightly fitted with the locking area 15 to ensure the sealing performance of the two connectors 10.

[0161] Specifically, as Figure 1 and Figure 10As shown, the axial distance between the two locking plates 23 is D1. The axial distance D1 between the two locking plates 23 refers to the axial distance between the two locking surfaces 231, and is also the axial distance between the innermost ends of the receiving surfaces 157 when the two connectors 10 are in the sealed position and the receiving surfaces 157 are in contact with the locking surfaces 231. When the two connectors 10 are in the pre-sealed position, the minimum axial distance between the receiving surfaces 157 of two axially adjacent receiving grooves 156 is D2, that is, the axial distance between the outer ends of the two receiving surfaces 157 when the two connectors 10 are in the pre-sealed position. D1 / D2 = 0.7 - 0.95. Controlling the value of D1 / D2 aims to control the difficulty of the locking plate 23 being inserted into the receiving groove 156 and the locking force. If the value of D1 / D2 is too small, it means that D1 is too small, and it is difficult for the two locking plates 23 to be inserted into the corresponding receiving grooves 156 simultaneously, which easily causes the force application directions of the two main bodies 11 to deviate, further leading to the docking failure of the two main bodies 11 and the internal flow channel 12 being connected to the outside. If the value of D1 / D2 is too large, the difference between D1 and D2 is small. When the two connectors 10 transition from the pre-sealed position to the sealed position, the axial displacement is small, the compression amount of the elastic sealing portion 13 is insufficient, the sealing effect is not good, and the axial pre-tightening force between the receiving surface 157 and the locking surface 231 is insufficient, and the locking effect of the two is also not good. The locking member 20 is easily withdrawn from the receiving groove 156 under the influence of external force, further leading to locking failure and the flow channel 12 being unable to be sealed and connected, resulting in pollution.

[0162] As Figure 3As shown, the length of the receiving groove 156 along the first radial direction of the flow channel 12 is L1, and the length of the locking plate 23 along the first radial direction of the flow channel 12 is L2. The radial length L1 of the receiving groove 156 represents the distance between the outermost end and the innermost end of the receiving surface 157 in the first radial direction, and the receiving surface 157 exerts an axial pre-tightening force on the locking surface 231 of the locking plate 23 to fix the locking plate 23 in the receiving groove 156. Based on the torque, the longer L1 is, the greater the axial pre-tightening force of the outermost end of the receiving surface 157 on the locking plate 23, but L1 should not be too long to avoid the connector 10 being too large in volume. When the two connectors 10 are in the sealed position and the locking plate 23 is completely placed in the receiving groove 156, the radial length L2 of the locking plate 23 is the insertion depth and the locking depth of the locking plate 23 and the receiving groove 156. The larger L2 is, the larger the contact area between the locking plate 23 and the receiving groove 156, and the better the locking effect, but it will cause the insertion process to take a longer time. L1 / L2 = 1.2 - 5. By controlling the value of L1 / L2, the receiving surface 157 has an appropriate axial pre-tightening force on the locking surface 231, and rapid insertion and locking can be achieved. If the value of L1 / L2 is too small, it means that L2 is too long, making it difficult to achieve rapid locking, difficult to ensure the continuity and rapidity of the sealing action, and not conducive to maintaining the accuracy of the alignment process before the two main bodies 11 are locked. If the value of L1 / L2 is too large, either L1 is too long, resulting in the connector 10 being too large in volume, or L2 is too short, and the contact area between the locking plate 23 and the receiving groove 156 is insufficient, and the locking plate 23 is easily detached from the receiving groove 156.

[0163] As Figure 12 shown, the sliding member 21 is arranged on the plate-like structures on both sides of the locking plate 23. The radial length of the plate-like structure is L3, which is also the length of the plate-like structure in the first radial direction. L3 is greater than L2, so that when the sliding member 21 is located in the second section 154 of the sliding groove 152, the locking plate 23 is located outside the receiving groove 156, and the locking surface 231 does not contact the receiving surface 157.

[0164] As Figure 12 and Figure 3 shown, in the first embodiment, the end parts of the two locking plates 23 respectively have third relief surfaces 25, and the two third relief surfaces 25 are inclined relative to each other. When the locking member 20 cooperates with the locking area 15, the two third relief surfaces 25 are respectively in extrusion fit with the receiving parts of the two connectors 10 to guide the locking plate 23 into the corresponding receiving groove 156. The function of the third relief surface 25 is that when the locking plate 23 is inserted into the receiving groove 156, the third relief surface 25 first contacts the outermost end of the receiving groove 156 and gradually compresses the adjacent side walls of the two receiving grooves 156, so that the locking plate 23 can enter the receiving groove 156 more labor-savingly, and then the locking surface 231 abuts against the receiving surface 157 and exerts an axial force to further compress the adjacent side walls of the two receiving grooves 156 until the locking plate 23 completely enters the receiving groove 156.

[0165] In the first embodiment, the connecting portion 27 connects the two locking plates 23, so that the locking member 20 forms a whole. The radial projection of the connecting portion 27 overlaps with the radial projections of the two main bodies 11 in part, and the axial projection of the connecting portion 27 overlaps with the axial projections of the two main bodies 11 in part. That is, when the locking member 20 is embedded on the main body 11, the connecting portion 27 is also at least partially embedded in the main body. As Figure 3 shown, the connecting portion 27 is completely embedded in the side surface of the main body 11, and the outer peripheral surface of the connecting portion 27 is substantially flush with the outer peripheral surface of the main body 11. That is, the outer peripheral shape of the locking member 20 is substantially the same as the outer peripheral shape of the locking area. As Figure 4 shown, the direction of the line connecting the circumferential two ends of the connecting portion 27 is defined as the first direction. The dotted line passing through the center of the flow channel 12 in the figure is parallel to the line connecting the circumferential two ends of the connecting portion 27, and is also the first direction. The maximum length of the main body 11 in the first direction is L3, and the maximum length of the circumferential two ends of the connecting portion 27 in the first direction is L4, and L4 / L3 = 0.3 - 0.7; it can be understood that L3 represents the maximum length of the main body 11 in the first direction. When the main body 11 is cylindrical, L3 represents the diameter of the main body 11. When the main body 11 is square, L3 represents the length of the longest side of the main body 11 in the first direction. L4 represents the maximum length of the part of the connecting portion 27 embedded in the main body 11. Controlling the value of L4 / L3, that is, controlling the proportion of the locking member 20 and the locking area 15 on the main body 11. If the ratio is too small, the proportion of the locking area 15 on the main body 11 is relatively small, and the force application range on the main body 11 is relatively concentrated, and the main body is prone to skew or shift during the locking process, and the locking effect is not good; if the ratio is too large, the proportion of the locking area 15 on the main body 11 is too large. On the one hand, it is not convenient for the staff to operate, and on the other hand, it will occupy the position of the engaging member 14, affecting the stability of the two connectors 10 in the pre-sealed position.

[0166] In the fifth embodiment as Figure 16 shown, the receiving portion includes an inclined groove 1561 located on the second surface 112 of the main body 11. The inner end of the inclined groove 1561 has a card slot 1562. The locking member 20 includes two oppositely arranged clamping portions 24. The clamping portions 24 move along the inclined groove 1561 and finally snap into the card slot 1562, applying an axial force to the two main bodies 11 and fixing them on the main bodies 11, so that the two connectors 10 maintain the sealed position.

[0167] In some embodiments, in order to further reduce the risk that the locking member 20 tends to slide away from the flow channel 12 and even separate from the main body 11, a stop portion is provided on the locking member 20, and a blocking portion is provided on the main body 11. Through the cooperation of the stop portion and the blocking portion, the locking member 20 is prevented from sliding away from the flow channel 12, so as to ensure that the locking member 20 continuously applies an axial force to the two connectors 10, so that the two connectors 10 are kept in the sealed position and the sealing effect of the axial docking of the two connectors 10 is improved.

[0168] There are various forms and cooperation methods of the stop portion and the blocking portion.

[0169] For example Figure 24 In Embodiment 9 shown in the figure, the stop portion is a barb 28, and the barb 28 is located at the end of the locking member 20 close to the flow channel 12 and extends along the radial direction of the main body 11 or along a direction parallel to the radial direction; the blocking portion is a barb groove 17 located inside the main body. At the sealed position, the barb 28 and the barb groove 17 are hooked to each other. Each locking member 20 has a barb 28, which is correspondingly hooked to the barb groove 17 on the corresponding side.

[0170] Specifically, as Figure 25 shown in the figure, the barb 28 is a hook-shaped structure and is located at the ends on both circumferential sides of the locking member 20 and extends along the first radial direction. In this embodiment, the barb 28 is located on the front side of the sliding member 21 and is relatively closer to the center of the flow channel 12; as Figure 24 shown in the figure, the barb groove 17 is located inside the main body 11, specifically at the bottom of the receiving groove 156. The opening direction of the barb groove 17 is parallel to the first radial direction and is within the range of the locking area 15. When the locking member 20 is inserted into the receiving groove 156 along the radial direction, the barb 28 gradually approaches and passes through the barb groove 17. When the two connectors 10 are in the sealed position, the barb 28 passes through the barb groove 17 and is clamped with the outer peripheral wall of the barb groove 17 to realize the hooking of the two, thereby preventing the locking member 20 from radially withdrawing from the receiving groove 156, improving the connection firmness between the locking member 20 and the locking area 15, and further improving the sealing effect of the axial docking of the two connectors 10.

[0171] For example Figure 26 and 27 In Embodiment 10 shown in the figure, the stop portion is the sliding member 21 of the locking member 20, and the blocking portion is an inclined block 18 provided on the sliding member 151 of the main body 11. The sliding member 21 and the sliding member 151 are slidably matched. The inclined block 18 is provided on the sliding path of the sliding member 21 and includes a guiding inclined surface 181 and a stop surface 182. At the sealed position, the sliding member 21 abuts against the stop surface 182. Each locking member 20 has a stop portion and is cooperatively stopped with the inclined block 18 on the corresponding side.

[0172] Specifically, the sliding member 21 in this embodiment is similar or identical in structure to the sliding member 21 in the first embodiment, and the manner of achieving the sliding fit with the sliding member 151 is also the same as that in the first embodiment, which will not be elaborated herein; the difference lies in that an inclined block 18 is provided on the sliding member 151; as Figure 26 shown in the enlarged view in, the inclined block 18 is provided on the inner wall of the chute 152 close to the first surface and within the range of the second section 154. Thus, when the two connectors 10 are in the pre-sealing position, the sliding member 21 is located on the side of the inclined block 18 away from the flow channel 12 and relatively close to the guiding inclined surface 181 of the inclined block 18, while the locking member 20 is close to the flow channel 12. When the two connectors 10 change from the pre-sealing position to the sealing position, the sliding member 21 approaches and enters the first section 153 along the guiding inclined surface 181. In the sealing position, the sliding member 21 abuts against the stop surface 182. The stop surface 182 is axially arranged and can prevent the sliding member 21 from moving away from the flow channel 12, thereby preventing the locking member 20 from moving away from the flow channel 12. It should be noted that the minimum distance between the inclined block 18 and the inner wall of the chute 152 in this embodiment is also greater than the axial length of the sliding member 21 to ensure the smooth movement of the sliding member 21 from the second section 154 to the first section 153 and achieve the rapid change of the two connectors 10 from the pre-sealing position to the sealing position.

[0173] As Figure 28 and 29 shown in Embodiment XI, there are at least two locking members 20. The stop portion on one locking member 20 is the first barb 281, and the stop portion on the other locking member 20 is the second barb 282. The first barb 281 and the second barb 282 are respectively located at the end of the locking member 20 close to the flow channel 12 and extend along the radial direction of the main body 11 or along a direction parallel to the radial direction. The blocking portion is a through groove 19 located inside the main body 11, and the through direction is the same as the extending direction of the first barb 281 and the second barb 282. In the sealing position, the first barb 281 and / or the second barb 282 penetrate into the through groove 19 and hook each other. In this embodiment, the cooperation mode between the stop portion and the blocking portion is that the blocking portion provides space for the stop portions of the two locking members 20 to hook each other, thereby fixing the two locking members 20 on the main body 11 and preventing the locking members 20 from sliding away from the flow channel direction.

[0174] Specifically, as Figure 28 shown, both the first barb 281 and the second barb 282 are hook-shaped structures, respectively located at the ends on both circumferential sides of the same locking member 20 and extending along the first radial direction. The extending lengths of the first barb 281 and the second barb 282 may be the same or different. In this embodiment, the length of the first barb 281 is greater than the length of the second barb 282; as Figure 29As shown, both ends of the through groove 19 communicate with two receiving grooves 156 respectively, and the through direction is parallel to the first radial direction. The through groove 19 is partially located within the range of the locking area 15, and there is also a space in the through groove 19 for the first barb 281 and the second barb 282 to hook each other. When the locking member 20 is inserted into the receiving groove 156 in the radial direction, the first barb 281 gradually approaches and penetrates one side of the through groove 19. At the same time, the second barb 282 gradually approaches and penetrates the other side of the through groove 19. At the sealing position, the first barb 281 and / or the second barb 282 penetrate into the through groove 19 and hook each other. The two locking members 20 are equivalent to clamping the connector 10, thereby preventing the locking member 20 from moving away from the flow channel 12.

[0175] As Figure 30 In the twelfth embodiment shown, the stop portion is the concave point 26 provided on the locking member 20, and the blocking portion is the convex point 1563 provided on the main body 11. The convex point 1563 protrudes toward the receiving groove 156. At the sealing position, the convex point 1563 is adaptively clamped with the concave point 26, and cooperates with the locking plate 23 and the receiving groove 156 to fix the locking member 20 in the receiving groove 156.

[0176] The assembly process of the sterile connector assembly according to the embodiment of the present invention is as follows: First, the two connectors 10 are axially butted first, so that the engaging portions 141 and the buckling portions 142 of the two connectors 10 are engaged with each other, and the two connectors 10 are positioned to the pre-sealing position. At this time, the elastic sealing portions 13 of the two connectors 10 are in contact with each other, and the flow channels 12 are communicated with each other; then, the sliding member 21 of the locking member 20 is inserted into the second section 154 of the sliding groove 152. After confirming that the locking members 20 are in one-to-one docking with the locking area 15, all the locking members 20 are simultaneously pushed toward the center direction of the flow channel 12, so that the sliding member 21 enters the first section 153 of the sliding groove 152, the locking plate 23 enters the receiving groove 156, and the receiving surface 157 abuts against the locking surface 231, fixing the two connectors 10 to the sealing position, and the elastic sealing portions 13 are compressed with each other, and the flow channels 12 are hermetically communicated.

[0177] As Figure 20 In the seventh embodiment shown, the present invention also discloses a sterile connector, including the connector 10 of the above embodiment, and further including a bacteria isolation film 16. The bacteria isolation film 16 is removably connected to the first surface 111 in the radial direction. Before the sterile connector reaches the pre-sealing position, the bacteria isolation film 16 will always cover the flow channel 12 and the elastic sealing portion 13. After the two sterile connectors are axially butted to the pre-sealing position, the two bacteria isolation films 16 abut against each other. Apply force to the bacteria isolation film 16 and remove it, so that the two elastic sealing portions 13 abut against each other, and the two flow channels 12 are communicated. As Figure 10As shown. The position of the bacteria isolation film 16 does not overlap with the position of the clamping member 14. Removing the bacteria isolation film 16 will not interfere with the clamping member 14. At the same time, by setting the number and position of the clamping members 14, the two connectors 10 also have high stability in the pre-sealing position. Even when a force is applied to the main body 11 when removing the bacteria isolation film 16, the pre-sealing position can be maintained, and at the same time, the two elastic sealing parts 13 are made to contact each other, realizing the sealed connection of the two flow channels 12 on the premise of preventing the flow channel 12 from contacting the outside world.

[0178] As Figure 22 In the seventh embodiment shown, four clamping members 14 are provided on the main body 11 of the connector 10, namely two clamping parts 141 and two buckling parts 142. The clamping parts 141 and the buckling parts 142 are circumferentially spaced apart. The orientations of the first hooks 1412 on the two clamping parts 141 are opposite in the circumferential direction, and the setting direction of the buckling part 142 is adapted to the first hook 1412.

[0179] As Figure 23 In the eighth embodiment shown, four clamping members 14 are provided on the main body 11 of the connector 10, namely two clamping parts 141 and two buckling parts 142. The clamping parts 141 and the buckling parts 142 are circumferentially spaced apart. The orientations of the first hooks 1412 of the two clamping parts 141 are clockwise and counterclockwise respectively, and the setting direction of the buckling part 142 is adapted to the first hook 1412.

[0180] As Figures 17 to 19 In the sixth embodiment shown, the sterile connector includes a sterile sealing cap 30. The sterile sealing cap 30 covers the first surface 111 of the connector 10 and forms a sealed connection. The sterile sealing cap 30 is in clamping fit with the clamping member 14. The function of the sterile sealing cap 30 is to protect the first surface 111 of the main body 11 and the bacteria isolation film 16 covering the flow channel 12. The bacteria isolation film 16 can be stored in the sterile sealing cap 30 to avoid accidental removal, which may cause the inside of the flow channel 12 to communicate with the outside world and cause contamination.

[0181] As Figure 21 In the sixth embodiment shown, the sterile sealing cap 30 is provided with an air inlet 31. The axial projection of the air inlet 31 is located within the axial projection of the bacteria isolation film 16; the function of the air inlet 31 is to maintain the internal and external pressure balance when the sterile sealing cap 30 is connected to the connector 10. Especially for the bacteria isolation film 16, it can avoid the pressure increase caused by the space compression when the sterile sealing cap 30 is connected to the connector 10, which may cause the bacteria isolation film 16 to be deformed or even ruptured under pressure, affecting the sterility of the sterile connector before use.

[0182] The connector 10 is provided with positioning points, and the sterile sealing cap 30 is provided with a positioning portion 32 that cooperates with the positioning points. The positioning points can be the clamping portions 141 on the connector 10, and the positioning portion 32 is an arc-shaped block provided on the periphery of the sterile sealing cap 30. The first hook 1412 on the clamping portion 141 is clamped with the arc-shaped block, and due to the arc surface of the arc-shaped block, the first hook 1412 can be easily clamped or unclamped. Through the mutual cooperation of the positioning points and the positioning portion 32, the precise alignment and stable connection of the sterile sealing cap 30 and the connector 10 are achieved. At the same time, it also makes the sterile sealing cap 30 easier to be disassembled from the connector 10, improving the operation efficiency when the two connectors 10 are docked. The periphery of the sterile sealing cap 30 is provided with a baffle 33, the baffle 33 extends axially, and the arc-shaped block is located on the outer peripheral surface of the baffle 33.

[0183] In some embodiments, the locking member 20 can be included in the sterile connector. In other embodiments, the locking member 20 can be sold and packaged separately.

[0184] As Figure 19 Shown in Embodiment Six, the sterile connector further includes a locking member 20. The inner side of the periphery of the sterile sealing cap 30 is provided with an avoidance space 34 for accommodating the locking member 20. The locking member 20 is received between the sterile sealing cap 30 and the connector 10, improving the operation efficiency when the two connectors 10 are docked. There is no need to additionally store the locking member 20. After the operator takes out the locking member 20 from the avoidance space 34, it can be used, avoiding the situation that the locking member 20 is lacking when the connectors 10 are docked. The baffle 33 also forms an avoidance space 34 for accommodating the locking member 20 with the main body 11 of the connector 10. The avoidance space 34 is adapted to the position of the receiving groove 156 on the main body 11. One locking plate 23 of the locking member 20 is inserted into the receiving groove 156 on the main body 11, so that the locking member 20 is fixed in the avoidance space 34. In addition, the sterile sealing cap 30 is also provided with a clamping point 35, and the locking member 20 is provided with a concave point 26. The clamping point 35 is adaptively clamped with the concave point 26, and cooperates with the locking plate 23 and the receiving groove 156 to fix the locking member 20 in the avoidance space 34.

[0185] The usage method of the sterile connector according to Embodiment Six of the present invention is as follows:

[0186] Take two sterile connectors, remove the sterile sealing cap 30, take out the locking member 20, and then axially dock the two connectors 10 to the pre-sealed position. Remove the bacteria-isolating film 16, insert the sliding member 21 of the locking member 20 into the second section 154 of the chute 152, and confirm that the locking member 20 is docked one by one with the locking area 15. The above two steps can be carried out in any order. The bacteria-isolating film 16 can be removed first, or the locking member 20 can be inserted first. After removing the bacteria-isolating film 16, the elastic sealing parts 13 of the two connectors 10 contact each other, and the flow channels 12 communicate with each other. At the same time, all the locking members 20 are pushed towards the center direction of the flow channel 12, so that the sliding member 21 enters the first section 153 of the chute 152, and the locking plate 23 enters the receiving groove 156, and the receiving surface 157 abuts against the locking surface 231, fixing the two connectors 10 to the sealed position, the elastic sealing parts 13 compress each other, and the flow channels 12 are sealed and communicated.

[0187] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A sterile connector assembly, comprising two connectors, characterized in that: Also includes a locking member; The connector comprises: a body including a first surface; A flow channel extending from the first surface axially through the main body; an elastic sealing portion, extending continuously around the flow channel and protruding from the first surface; A clamping piece, used to axially connect the two connectors to a pre-sealing position; and locking area; The locking member is used to cooperate with the locking areas of the two connectors, so that the two connectors are axially butted together to form a sealing position, the two elastic sealing parts are compressed and pressed together, and the two flow channels form an axially extending sealing channel; Among them, the total number of the clamps in the two connectors is at least three. After the two connectors are axially docked, the line connecting the positions of at least two of the clamps passes through the flow channel, and the angle Q formed by the line connecting at least two of the clamps and the axis of the flow channel is 120°≤Q≤180°.

2. The sterile connector assembly according to claim 1, characterized in that The clamping member and the locking area are circumferentially staggered.

3. The sterile connector assembly according to claim 1, characterized in that: In the two connectors, the number of the clips is four groups and the four groups of clips are evenly distributed along the circumference, the maximum circumferential spacing between two adjacent clips is H1, and the minimum circumferential spacing between the clips and the adjacent locking areas is H2, satisfying that H1 / H2=1-6.

4. The sterile connector assembly according to claim 1, wherein: The clamping member includes a clamping portion located on the main body and a buckle portion matched with the clamping portion, and the clamping portion includes a movable portion extending from the main body and a first hook located at the end of the movable portion; In one of the connectors, the first hooks of at least two of the clamping parts are oriented in opposite directions.

5. The sterile connector assembly according to claim 4, characterized in that: After the two connectors are axially butted together, the first hooks of two non-adjacent clamping members face in opposite directions.

6. The sterile connector assembly according to claim 4, characterized in that: In the sealing position, the engaging portion of one of the two connectors is in a non-engaging state with the buckle portion of the other connector, and a first hook of the engaging portion is spaced from the buckle portion in the axial direction.

7. The sterile connector assembly according to claim 1, characterized in that: In the sealing position, the axial distance between the first surfaces of the two bodies is d1; in the pre-sealing position, the axial distance between the first surfaces of the two bodies is d2; d1<d2 and d1 / d2=0.1-0.

8.

8. The sterile connector assembly of claim 1, wherein: In one of the connectors, the number of the locking areas is at least two, and they are respectively located on two radial sides of the flow channel.

9. The sterile connector assembly according to claim 1, wherein: When the two connectors are butt-jointed to a sealing position, the radial projection of the locking member covers the elastic sealing portion.

10. The sterile connector assembly of claim 1, wherein: The locking member includes a sliding member, and the locking area includes a sliding member arranged on the main body. The sliding member extends radially or in a direction parallel to the radial direction on the side of the main body, so that the sliding member and the sliding member extend radially or in a direction parallel to the radial direction and slideably cooperate with each other.

11. The sterile connector assembly according to claim 10, wherein: The sliding member is provided with a sliding groove extending in a direction parallel to the radial direction, the sliding groove has a first opening facing the circumferential side surface of the locking member, and the sliding member is slidingly connected to the sliding groove along the radial direction.

12. The sterile connector assembly of claim 11, wherein: The slide groove comprises a first section close to the flow channel and a second section away from the flow channel, and a first matching clearance between the first section and the sliding member is greater than a second matching clearance between the second section and the sliding member; In the pre-sealing position, the sliding member is located in the second section, and in the sealing position, the sliding member is located in the first section.

13. The sterile connector assembly of claim 12, wherein: The axial spacing of the first section is h1, the axial spacing of the second section is h2, h1 / h2=1-1.2; and / or the radial length of the first section is h3, the radial length of the second section is h4, h3 / h4=0.3-4.

14. The sterile connector assembly of claim 11, wherein: The sliding member has a second yielding surface at one end away from the flow channel, and the second yielding surface is inclined toward the direction of the slide groove; the sliding member has a first yielding surface, When the locking member is matched with the locking area, the first clearance surface and the second clearance surface are pressed and matched to guide the sliding member into the sliding groove.

15. The sterile connector assembly of claim 1, wherein: The locking area includes a receiving portion located on the side of the main body, and the locking member includes a locking portion; when the two connectors are axially connected to a sealed position, the locking portions form a locking fit with the receiving portions of the two connectors.

16. The sterile connector assembly of claim 15, wherein: The locking portion includes a locking surface, and the receiving portion includes a receiving surface. The locking surfaces are respectively pressed against the corresponding receiving surfaces to form a locking fit.

17. The sterile connector assembly of claim 16, wherein: The locking portion includes two locking plates, the locking surface is located on the locking plates, the receiving portion includes a receiving groove opened on the side of the main body, the receiving groove includes the receiving surface and a second opening located on the side of the main body, and when the two connectors are axially connected to a sealed position, the locking plate and the axial projection of the receiving groove at least partially overlap.

18. The sterile connector assembly of claim 17, wherein: The axial distance of the receiving groove tends to decrease from the direction close to the flow channel to the direction away from the flow channel along the direction parallel to the radial direction. Only in the sealing position, the locking part is completely in the receiving groove, and the receiving surface of the receiving groove applies an axial preload to the locking surface of the locking part.

19. The sterile connector assembly of claim 18, wherein: The axial spacing between the two locking plates is D1. When the two connectors are in the pre-sealing position, the minimum axial spacing between the receiving surfaces of the two axially adjacent receiving grooves is D2, and D1 / D2=0.7-0.95; and / or The length of the receiving groove along the radial direction of the flow channel is L1, the length of the locking plate along the radial direction of the flow channel is L2, and L1 / L2=1.2-5.

20. The sterile connector assembly of claim 18, wherein: The ends of the two locking plates respectively have a third clearance surface, and the two third clearance surfaces are relatively inclined. When the locking member cooperates with the locking area, the two third clearance surfaces are respectively squeezed and matched with the receiving parts of the two connectors to guide the locking plates into the corresponding receiving grooves.

21. The sterile connector assembly of claim 17, wherein: The locking member further comprises a connecting portion connecting the two locking plates, wherein in the sealing position, the locking plates are locked in cooperation with the corresponding receiving grooves, and the radial projection of the connecting portion partially overlaps with the radial projection of the first surfaces of the two main bodies; The connecting line direction of the two circumferential ends of the connecting part is defined as a first direction, the first direction is parallel to the radial direction of the flow channel, the maximum length of the main body in the first direction is L3, the maximum length of the two circumferential ends of the connecting part in the first direction is L4, and L4 / L3=0.3-0.

7.

22. The sterile connector assembly according to any one of claims 1 to 4, characterized in that: The locking member is provided with a stopper, and the main body is provided with a blocking portion, and the stopper cooperates with the blocking portion to prevent the locking member from sliding in a direction away from the flow channel.

23. The sterile connector assembly of claim 22, wherein: The stopper is a barb, which is located at the end of the locking member close to the flow channel and extends in the radial direction of the main body or in a direction parallel to the radial direction. The blocking portion is a barb groove located inside the main body. In the sealing position, the barb and the barb groove are connected to each other. or, The locking members include at least two, wherein the stopper on one of the locking members is a first barb, and the stopper on the other locking member is a second barb, the first barb and the second barb are respectively located at the ends of the locking member close to the flow channel, and extend along the radial direction of the main body or in a direction parallel to the radial direction, the blocking portion is a through groove located inside the main body, and the through direction is the same as the extension direction of the first barb and the second barb, and in the sealing position, the first barb and / or the second barb penetrate into the through groove and are connected with each other; or The stopper is a sliding member of the locking member, the blocking member is an inclined block arranged on the sliding member of the main body, the sliding member and the sliding member are slidably matched, the inclined block is arranged on the sliding path of the sliding member, and includes a guiding inclined surface and a stopper surface, and in the sealing position, the sliding member abuts against the stopper surface; or The stop portion is a concave point arranged on the locking member, and the blocking portion is a convex point arranged on the main body. In the sealing position, the convex point is adapted to be engaged with the concave point.

24. A sterile connector, characterized in that: A connector comprising any one of claims 1 to 23, further comprising a bacteria-isolating membrane which is radially removably connected to the first surface, for covering the flow channel and the elastic sealing portion, and for being removed in a pre-sealing position to allow the two elastic sealing portions to contact and the two flow channels to be sealed and connected, wherein the position of the bacteria-isolating membrane does not overlap with the position of the snap-fit ​​component.

25. The aseptic connector of claim 24, wherein: comprising a sterile sealing cap, the sterile sealing cap covers the first surface of the connector and forms a sealed connection, the sterile sealing cap is engaged with the snap-fit ​​part; and / or The sterile sealing cap is provided with an air inlet, and the axial projection of the air inlet is located within the axial projection of the bacteria-isolating membrane; and / or The connector is provided with a positioning point, and the sterile sealing cap is provided with a positioning portion that matches the positioning point.

26. The aseptic connector of claim 25, wherein: It also includes a locking piece, and an escape space for accommodating the locking piece is provided on the inner side of the periphery of the sterile sealing cap; and / or a baffle is provided on the periphery of the sterile sealing cap, and the baffle extends axially to form an escape space for accommodating the locking piece with the main body of the connector.

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